Reigning 'American Idol' champ Scotty McCreery may not be turning 18 for another week, but he's already got the deep Southern twang of a seasoned country star. McCreery made an appearance on 'Today' (weekdays, 9AM ET on NBC) to talk about the upcoming milestone and performed his song 'The Trouble With Girls.'

In the next few months, McCreery will be singing the National Anthem at Game 1 of the World Series and going on the road with Brad Paisley. Five days after his CD comes out, he turns 18. "We're actually going to have a big concert, CD release birthday bash," he told Ann Curry.

He then performed his song 'That's the Trouble With Girls.' McCreery's album 'Clear as Day' comes out Tues., Oct. 4.